One-Way Traffic Controls Next Week
Mariposa County – The California Department of Transportation (Caltrans) will have traffic controls in place for the following construction and maintenance activities on State Route 140 (SR-140) in Mariposa County next week. Work is scheduled to occur as follows:
State Route 49
- One-way traffic control from Harris Road to Watt Road for drainage work beginning Monday, August 17, through Friday, August 21, 2026, from 6:00 a.m. to 4:00 p.m.
- One-way traffic control from Triangle Road to Stumpfield Mountain Road for drainage work beginning Monday, August 17, through Thursday, August 20, 2026, from 6:00 a.m. to 4:00 p.m.
State Route 132
- One-way traffic control from Shimer Drive Way to Piney Creek Road for utility work on Monday, August 17, 2026, from 8:00 a.m. to 3:00 p.m.
- One-way traffic control at Old Highway 49 / Coulterville for drainage work beginning Monday, August 17, through Friday, August 21, 2026, from 6:00 a.m. to 4:00 p.m.
State Route 140
- One-way traffic control from Midpines Summit to Cobey Lane for utility work beginning Monday, August 17, through Friday, August 21, 2026, from 7:00 a.m. to 3:00 p.m.
- One-way traffic control from Dry Gulch to Foresta Road for highway construction work on Thursday, August 20, 2026, from 6:00 a.m. to 3:00 p.m.
Motorists should expect 5-to-10-minute delays and use alternate routes whenever possible. All work is scheduled to occur as listed but is subject to change due to traffic incidents, weather, availability of equipment/materials, and construction-related issues.
For the safety of workers and other motorists, please Be Work Zone Alert. Caltrans also reminds motorists to #KnowBeforeYouGo by checking QuickMaps on your mobile device or visit quickmap.dot.ca.gov for real-time highway conditions.
